Buyer Beware, My wife told me to buy more ink from Overstock because of the coupons and discounts. I save like *** on 4 cartridges through Overstock, But when I installed the new cartridges in my HP Deskjet 2542. The HP software game me a message that the installed cartridge is not OEM HP, and is not compatible with this printer. Now I'm stuck with **** worth of useless cartridges. The item description clearly states HP 61XL, but apparently it is generic cartridge compatible with The HP 61XL printer, but only a select few models. It would have been great if I could have just returned the items to overstock, but When I tried to return them, they are listed as non-returnable items. So save yourself the aggrevation and buy your HP cartridge ****. They run coupons and deals all the time. When staples lists the item description as HP 61XL, it is not a generic piece of garbage.